[....] Starting enhanced syslogd: rsyslogd[ 12.603234] audit: type=1400 audit(1513704835.248:5): avc: denied { syslog } for pid=2993 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 17.551128] audit: type=1400 audit(1513704840.195:6): avc: denied { map } for pid=3133 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added 'ci-upstream-mmots-kasan-gce-5,10.128.0.47' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 [ 23.848145] audit: type=1400 audit(1513704846.492:7): avc: denied { map } for pid=3147 comm="syzkaller431886" path="/root/syzkaller431886648" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program [ 23.988531] audit: type=1400 audit(1513704846.632:8): avc: denied { sys_admin } for pid=3147 comm="syzkaller431886" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 executing program executing program executing program [ 24.020545] audit: type=1400 audit(1513704846.665:9): avc: denied { sys_chroot } for pid=3171 comm="syzkaller431886" capability=18 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 31.260077] kasan: CONFIG_KASAN_INLINE enabled [ 31.264830] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 31.272224] general protection fault: 0000 [#1] SMP KASAN [ 31.277745] Dumping ftrace buffer: [ 31.281263] (ftrace buffer empty) [ 31.284950] Modules linked in: [ 31.288114] CPU: 1 PID: 3574 Comm: syzkaller431886 Not tainted 4.15.0-rc2-mm1+ #39 [ 31.295783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.305113] RIP: 0010:crypto_chacha20_crypt+0x537/0xbd0 [ 31.310440] RSP: 0018:ffff8801c0cb74a0 EFLAGS: 00010246 [ 31.315777] RAX: dffffc0000000000 RBX: 00000000e6000000 RCX: ffffffff8226f20b [ 31.323023] RDX: 0000000000000000 RSI: ffff8801c0ce7e40 RDI: ffff8801c0cb753c [ 31.330260] RBP: ffff8801c0cb76c0 R08: ffffed003821f7cc R09: ffff8801c10fbe40 [ 31.337496] R10: ffff8801c0cb76e0 R11: ffffed003821f7cb R12: 0000000000000000 [ 31.344732] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 31.351970] FS: 0000000000ca9880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 31.360171] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 31.366020] CR2: 00007fb0230ef000 CR3: 00000001c2f97006 CR4: 00000000001606e0 [ 31.373269] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 31.380506] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 31.387749] Call Trace: [ 31.390308] ? crypto_chacha20_setkey+0xc0/0xc0 [ 31.394947] ? __kmalloc+0x162/0x760 [ 31.398626] ? sock_kmalloc+0x112/0x190 [ 31.402565] ? skcipher_recvmsg+0x3f8/0xf20 [ 31.406851] ? sock_recvmsg+0xc9/0x110 [ 31.410703] ? sock_read_iter+0x361/0x560 [ 31.414817] ? aio_read+0x2b0/0x3a0 [ 31.418407] ? do_io_submit+0xf99/0x14f0 [ 31.422432] ? SyS_io_submit+0x27/0x30 [ 31.426298] ? entry_SYSCALL_64_fastpath+0x1f/0x96 [ 31.431199] ? mark_held_locks+0xb2/0x100 [ 31.435313] ? retint_kernel+0x10/0x10 [ 31.439168] ? af_alg_pull_tsgl+0x8c2/0xc20 [ 31.443462] chacha20_simd+0xe4/0x410 [ 31.447227] ? chacha20_simd+0xe4/0x410 [ 31.451168] ? af_alg_get_rsgl+0x990/0x990 [ 31.455368] ? chacha20_dosimd+0x340/0x340 [ 31.459570] ? rcu_read_lock_sched_held+0x108/0x120 [ 31.464554] ? sock_kmalloc+0x112/0x190 [ 31.468496] ? refcount_inc_not_zero+0xfe/0x180 [ 31.473128] ? refcount_add+0x60/0x60 [ 31.476894] ? copy_overflow+0x30/0x30 [ 31.480748] ? lock_sock_nested+0x91/0x110 [ 31.484947] ? trace_hardirqs_on+0xd/0x10 [ 31.489062] skcipher_recvmsg+0x739/0xf20 [ 31.493173] ? skcipher_recvmsg+0x739/0xf20 [ 31.497467] ? skcipher_release+0x50/0x50 [ 31.501583] ? selinux_socket_recvmsg+0x36/0x40 [ 31.506216] ? security_socket_recvmsg+0x91/0xc0 [ 31.510940] ? skcipher_release+0x50/0x50 [ 31.515051] sock_recvmsg+0xc9/0x110 [ 31.518740] sock_read_iter+0x361/0x560 [ 31.522690] ? sock_recvmsg+0x110/0x110 [ 31.526630] ? selinux_file_permission+0x82/0x460 [ 31.531876] ? rw_verify_area+0xe5/0x2b0 [ 31.535906] aio_read+0x2b0/0x3a0 [ 31.539331] ? aio_write+0x5a0/0x5a0 [ 31.543011] ? lock_downgrade+0x980/0x980 [ 31.547131] ? lock_release+0xda0/0xda0 [ 31.551077] ? __might_sleep+0x95/0x190 [ 31.555028] do_io_submit+0xf99/0x14f0 [ 31.558892] ? do_io_submit+0xf99/0x14f0 [ 31.562925] ? aio_read+0x3a0/0x3a0 [ 31.566518] ? mm_fault_error+0x2c0/0x2c0 [ 31.570629] ? lock_downgrade+0x980/0x980 [ 31.574744] ? SyS_io_setup+0x10e/0x390 [ 31.578689] ? do_page_fault+0xee/0x720 [ 31.582630] ? __do_page_fault+0xc90/0xc90 [ 31.586839] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 31.591820] SyS_io_submit+0x27/0x30 [ 31.595499] ? SyS_io_submit+0x27/0x30 [ 31.599356] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 31.604079] RIP: 0033:0x446359 [ 31.607234] RSP: 002b:00000000007efa58 EFLAGS: 00000213 ORIG_RAX: 00000000000000d1 [ 31.614905] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000446359 [ 31.622147] RDX: 0000000020738000 RSI: 0000000000000001 RDI: 00007fb0230ef000 [ 31.629383] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 31.636620] R10: 0000000000000000 R11: 0000000000000213 R12: 000000000000018f [ 31.643860] R13: 0000000000007a07 R14: 0000000000000000 R15: 0000000000000000 [ 31.651116] Code: 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 d6 05 00 00 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 89 9d 7c fe ff ff 48 c1 ea 03 <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 [ 31.670206] RIP: crypto_chacha20_crypt+0x537/0xbd0 RSP: ffff8801c0cb74a0 [ 31.677063] ---[ end trace f2ea254442c1df92 ]--- [ 31.681808] Kernel panic - not syncing: Fatal exception [ 31.687173] Dumping ftrace buffer: [ 31.690685] (ftrace buffer empty) [ 31.694366] Kernel Offset: disabled [ 31.697961] Rebooting in 86400 seconds..